Signal Analyzer Scours 26.5 GHz

The N9030A PXA signal analyzer offers analysis of wideband signals to 26.5 GHz, providing a 75 dB spurious-free dynamic range (SFDR) with 140-MHz analysis bandwidth. It features 0.19-dB absolute amplitude accuracy with low phase noise of -128 dBc/Hz offset 10 kHz from a 1-GHz carrier. The signal sensitivity is -172 dBm at the displayed average noise level (DANL) at 2 GHz when using a preamplifier and the firm’s Noise Floor Extension technology. It provides one-button measurements and an extensive library of measurment applications for signal analysis. Lower-frequency versions are also available.

Agilent Technologies, 5301 Stevens Creek Blvd., Santa Clara, CA 95051; (877) 424- 4536, (408) 345-8886, FAX: (408) 345-8474, Internet: www.agilent.com.

16-Channel DACs Fit PCI Express Cards

The ICS-1620 and ICS-1640 16-channel digital/analog con-verters (DACs) are packed on short-form-factor PCI Express x4 cards and designed for demanding data acquisition applications, such as multichannel sonar systems. The ICS- 1620features 16-b resolution and 85-dB dynamic range while the ICS-1640 operates with 24-b resolution and 100-dB dynamic range. Both DACs run as 2.5 MSamples/s. Channelchannel receive-transmit synchronization allows for target localization with no down time as the boards automatically recover synchronization. The ability for multiple boards to be synchronized with each other means that systems need not be limited to the 16-channels available on each board: very high channel count solutions can be developed. Flexible clocking schemes allow for programmability over the entire available sampling range with a resolution of 1 Hz. The clocks can be locked to a very stable onboard 10-MHz temperaturecontrolled crystal oscillator (TCXO), or to an externally supplied reference clock such as a GPS receiver.

GE Fanuc Intelligent Platforms, 5752 Green Springs Drive, Warrenton, VA 20187; (540) 347-0726; Internet: www.gefanuc.com.

VHF Transistor Is Thermally Enhanced

Model VRF151E is a thermally enhanced version of the VRF151 vertical MOSFET high-power device. The gold-metalized silicon transistor can provide 150 W output power with 22 dB gain at 30 MHz, or 150 W output power with 14 dB gain at 175 MHz, running on a voltage supply of +50 VDC in both cases. It can operate into mismatched loads as severe as a 30.0:1 VSWR and features an extremely high breakdown voltage of at least 170 V (and typically 180 V). The model VRF151E MOSFET achieves 50 percent efficiency at 30 MHz and is ideal for broadband commercial and military applications including in VHF transmitters. The device is protected by nitride passivation and supplied in a rugged M174A flange package.

Microsemi Corp., 2381 Morse Ave., Irvine, CA 92614; (800) 713-4113, (949) 221-7100, Internet: www.microsemi.com.

Power Dividers Pass 1 To 50 GHz

A series of wideband power dividers from ET Industries offers excellent electrical performance at various frequencies from 1 to 50 GHz. For example, model D-1040-4 is a four-way power divider that operates from 10 to 40 GHz with 2.6 dB maximum insertion loss, 1.65:1 maximum VSWR, and 18 dB minimum isolation. It measures 2.06 x 1.50 x 0.50 in. with amplitude and phase unbalance of 0.7 dB and 8 deg., respectively. Model D-1050-2 is a two-way power divider that covers 10 to 50 GHz with 1.8 dB maximum insertion loss, 1.70:1 maximum VSWR, and 19 dB minimum isolation. It measures 0.85 x 1.06 x 0.50 in. with amplitude and phase unbalance of 0.6 dB and 6 deg., respectively. Finally, model D-118-4 is a four-way power divider that operates from 1 to 18 GHz with 2.8 dB maximum insertion loss, 1.50:1 maximum VSWR, and 17 dB minimum isolation. It measures 4.35 x 2.90 x 0.50 in. with amplitude and phase unbalance of 0.5 dB and 6 deg., respectively.

ET Industries, Inc., 50 Intervale Road, Booton, NJ 07005; (973) 394-1719, FAX: (973) 394- 1710, e-mail: sales@etiworld.com, Internet: www.etiworld.com.

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